const express = require('./krepss');
const app = express();
app.get('/', (req, res) => {
  abc();
  res.end('Hello World');
});
app.get('/users', (req, res) => {
  res.end(JSON.stringify({ name: 'tom', age: 20 }));
});
app.listen(3000, () => {
  console.log('Example app listen at 3000');
})